Here's the math of it using the weights from your last harvest:

Wet: 347.3g
Dry: 75.6g

(75.6/347.3)=(X/100)
75.6 x 100 = 7560
7560/347.3 = 21.76%

Looks like my 20-25% holds true for you too. good. makes me feel better.

I have no idea yet for your current grow...haha...i'll say...500g wet...roughly 100-125g dry...

thanks.
Skeet.